Legions of lawyers are ready to enter the fray in case Election Day turns on a legal challenge. One nightmare scenario would be for the results in a battleground state like Florida or Ohio to be too close to call, with thousands of absentee or provisional ballots yet to be counted.
The key, experts say, is whether the difference in votes between the two candidates is within what's known as the "margin of litigation" — that is, the number of outstanding votes must be much greater than the margin separating Obama and Romney when the smoke clears. And, it must be in a state that's decisive.
"You'd have to have a state whose Electoral College votes are absolutely pivotal or there would have to be a massive problem involving voters," said Richard Hasen, law professor at the University of California, Irvine, and founding editor of the Election Law Journal. "There not only have to be problems in an election. They have to be widespread enough or the margin close enough that litigating would actually make a difference."
Legal and campaign officials on both sides say lawyers are poised at both the national level and in the key states to respond immediately if a court challenge is needed. The political parties have gained a lot of experience in legal fights over U.S. Senate and House seats. The last major legal battle over the presidency was the 2000 race, settled by the U.S. Supreme Court favoring George W. Bush over Al Gore.
The key, experts say, is whether the difference in votes between the two candidates is within what's known as the "margin of litigation" — that is, the number of outstanding votes must be much greater than the margin separating Obama and Romney when the smoke clears. And, it must be in a state that's decisive.
"You'd have to have a state whose Electoral College votes are absolutely pivotal or there would have to be a massive problem involving voters," said Richard Hasen, law professor at the University of California, Irvine, and founding editor of the Election Law Journal. "There not only have to be problems in an election. They have to be widespread enough or the margin close enough that litigating would actually make a difference."
Legal and campaign officials on both sides say lawyers are poised at both the national level and in the key states to respond immediately if a court challenge is needed. The political parties have gained a lot of experience in legal fights over U.S. Senate and House seats. The last major legal battle over the presidency was the 2000 race, settled by the U.S. Supreme Court favoring George W. Bush over Al Gore.